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ololo11 [35]
3 years ago
13

power plants can be powered by fossil fuels, such as coal or natural gas, or nuclear power to produce steam to turn turbines to

generate electricity. Elaborate on why one might not choose nuclear power over the fossil fuel power plants.
Chemistry
1 answer:
Georgia [21]3 years ago
5 0
Nuclear power plants can release hurtful chemicals into the environment while fossil fuel can be as efficient and less harmful to your surroundings.
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The ka for hcn is 4.9 ⋅ 10-10. What is the value of kb for cn-?
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Answer:

kb = 2,0x10⁻⁵

Explanation:

The ka for HCN is:

HCN ⇄ H⁺ + CN⁻; ka = 4,9x10⁻¹⁰ <em>(1)</em>

The inverse reaction has an equilibrium constant of:

H⁺ + CN⁻ ⇄ HCN k = 1/4,9x10⁻¹⁰ = 2,0x10⁹ <em>(2)</em>

As the equilibrium of the water is:

H₂O ⇄ H⁺ + OH⁻; kw = 1x10⁻¹⁴ <em>(3)</em>

The sum of (2) + (3) gives:

H₂O + CN⁻ ⇄ HCN + OH⁻; kb = kw×k = 1x10⁻¹⁴×2,0x10⁹ =

2,0x10⁻⁶; <em>kb = 2,0x10⁻⁵</em>

<em />

<em>-In fact, the general formula to convert from ka to kb is:</em>

<em>kb = kw / ka-</em>

<em />

I hope it helps!

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